如何将Canvas保存为PDF和jpg [英] How to save Canvas as PDF and jpg

问题描述

在此代码中，画布上的图形将另存为xml / XAML文件。

我需要将画布导出为PDF和JPG。因为xaml被序列化，我无法让它们受到限制。

In this code drawing on a canvas is saves as a xml/XAML file.
i need to export the canvas as PDF and JPG. I can't get them convered as the xaml is serialized.

private void Save_Executed(object sender, ExecutedRoutedEventArgs e)
       {
           IEnumerable<DesignerItem> designerItems = this.Children.OfType<DesignerItem>();
           IEnumerable<Connection> connections = this.Children.OfType<Connection>();


           XElement designerItemsXML = SerializeDesignerItems(designerItems);
           XElement connectionsXML = SerializeConnections(connections);

           XElement root = new XElement("Root");
           root.Add(designerItemsXML);
           root.Add(connectionsXML);

           SaveFile(root);

       }

推荐答案

您可以在打印窗口中以打印格式打开画布数据。你可以把它保存为pdf通过ctrl + p

You can open your canvas data in anoter windows as printed format . where you can save it as pdf through ctrl+p

StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
yourCanvasId.RenderControl(hw);
string canvasHTML = sw.ToString().Replace("\"", "'")
    .Replace(System.Environment.NewLine, "");


StringBuilder sb = new StringBuilder();

sb.Append("<script type = 'text/javascript'>");
sb.Append("window.onload = new function(){");
sb.Append("var printWin = window.open('', '', 'left=0");
sb.Append(",top=0,width=1200,height=600,status=0');");
sb.Append("printWin.document.write(\"");

sb.Append(canvasHTML);
sb.Append("\");");
sb.Append("printWin.document.close();");
sb.Append("printWin.focus();");
sb.Append("printWin.print();");
sb.Append("printWin.close();};");
sb.Append("</script>");
ClientScript.RegisterStartupScript(this.GetType(), "CanvasPrint", sb.ToString());

谢谢

AARIF SHAIKH

Thanks
AARIF SHAIKH

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